二氧化钛超声光催化处理氯苯废水研究

摘要

利用硫酸钛和浓氨水,在微波辅助条件下制备了二氧化钛光催化剂,考察了催化剂用量,双氧水用量,氯苯初始浓度,溶液酸度对超声光催化氯苯降解效率的影响,结果表明在催化用量为0.5g/L、双氧水用量为1.5g/L时降解效率可达85%以上.同时还得出氯苯浓度越大,催化降解效率越低,溶液酸度对催化降解效率几乎没有影响.实验结果可为光催化处理氯苯废水提供理论依据.%Using titanium sulfate and ammonia,in the microwave assisted conditions for preparation of TiO2pho-tocatalyst,the effects of catalyst dosage,initial concentration of hydrogen peroxide,chlorobenzene,effect of solution acidity on the ultrasonic photocatalytic degradation efficiency of chlorobenzene,the results show that the catalyst dos-age of 0.5g/L, dosage of H2O2is 1.5g/L degradation efficiency can reach more than 85%. It is also proved that chlorobenzene concentration and the catalytic degradation efficiency is low,the acidity of the solution had little effect on the photocatalytic degradation efficiency,the experimental results can provide the basis for the treatment of chloro-benzene wastewater by photocatalysis.